Trump Campaign Manager Again Under Fire for Altercation

Once again, Donald Trump's campaign manager is under fire for a physical altercation at a Trump rally.

Corey Lewandowski, already under investigation for manhandling a female reporter during a rally in Florida, reportedly yanked a protester by his shirt collar in a video from Trump's Saturday rally in Tucson, Ariz.

But the campaign is firing back. It says it was the man to Lewandowski's left who reached out to pull the protester back. The protester can be seen shoving the second man, and the campaign argues that he was reacting to whoever pulled him.